2(2x-5y) (3x+4y) -6(2x-5y) (x-y)
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Answered by
18
2(6x+8xy-15xy-20y²)-6(2x²-2xy-5xy+5y²).
12x²+16xy-30xy-40y²-12x²+12xy+30xy-30y²
12x²-14xy-40y²-12x²+42xy-30y²
+ and - 12x² will be cancel
28xy-70y²
12x²+16xy-30xy-40y²-12x²+12xy+30xy-30y²
12x²-14xy-40y²-12x²+42xy-30y²
+ and - 12x² will be cancel
28xy-70y²
tanishka002:
we have to take common
Answered by
16
2(2x-5y) (3x+4y) -6(2x-5y)(x-y)
= (4x-10y)(3x+4y) -12x+30y(x-y)
= 4x(3x+4y) - 10y(3x+4y) -12x(x-y) +30y (x-y)
= 12x² + 16xy -30xy - 40y² - 12x² + 12xy + 30xy -30y²
= 28xy - 70y²
= (4x-10y)(3x+4y) -12x+30y(x-y)
= 4x(3x+4y) - 10y(3x+4y) -12x(x-y) +30y (x-y)
= 12x² + 16xy -30xy - 40y² - 12x² + 12xy + 30xy -30y²
= 28xy - 70y²
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